rxformat.c

来自「<B>Digital的Unix操作系统VAX 4.2源码</B>」· C语言 代码 · 共 56 行

#ifndef lint
static char sccsid[] = "@(#)rxformat.c	4.5 (Berkeley) 8/11/83";
#endif

#include <stdio.h>
#include <sys/file.h>
#include <errno.h>
#include <vaxuba/rxreg.h>

char devname[] = "/dev/rrx?a";

/*
 * Format RX02 floppy disks.
 */

main(argc, argv)
	int argc;
	char *argv[];
{
	int fd, idens = 0, filarg = 1;

	if (argc < 2)
		usage();
	if (argc == 3) { 
		if (strncmp(argv[1],"-d",2) != 0)
			usage();
		idens++;
		filarg++;
	}
	devname[8] = argv[filarg][7];
	if ((fd = open(devname, O_RDWR)) < NULL) {
		perror(devname);
		exit (0);
	}
	printf("Format %s to", argv[filarg]);
	if (idens)
		printf(" double density (y/n) ?");
	else
		printf(" single density (y/n) ?");
	if (getchar() != 'y')
		exit (0);
	/* 
	 * Change the ioctl command when dkio.h has
	 * been finished.
	 */
	if (ioctl(fd, RXIOC_FORMAT, &idens) != NULL)
		perror(devname);
	close (fd);
}

usage()
{
	fprintf(stderr, "usage: rxformat [-d] /dev/rx?\n");
	exit (0);
}